Jar-cap.



No.'765,049. PATENTED JULY 12,1904.

E. J. SMITH.

LJAIR GAP.

I APPLICATION TILED OUT. 14. 1903. I0 IODEL.

attouws;

- UNITED STATES Patented July 12, 1904.

ELDRIDGE J. SMITH, OF WASHINGTON, DISTRICT OF COLUMBIA.

JAR-CAP.

SPECIFICATION forming part of Letters Patent No. 765,049, dated July 12,1904.

Application filed October 14, 1903. Serial No. 176,999. (No model.) v.

To all whmn it may concern.-

Be it known that I, ELDRIDGE J. SMITH, a citizen of the United States,residing at Washington, in the District of Columbia, have invented newand useful Improvements in Jar- Caps, of which the following is aspecification.

This invention has relation to jar-caps; and it consists in the novelconstruction and arrangement of its parts, as hereinafter described.

The object of the invention is to provide a jar-cap especially designedto be used on milk jars or bottles, the cap being so constructed that itmay be easily removed without having to use a fork or other sharpinstrument, or it may be opened by swinging back a section, whichsection may be closed while the cap is in place in the throat of thejar.

The essential features of the cap are a disk having a crescent-shaped orinterrupted corrugation located at its edge with a handle attached tothe disk in the space interrupting the ends of the corrugation, saidhandle adapted to lie flat upon the plane surface embraced by thecorrugation and having pointed corners at its free edge, so that aperson may readily slip the finger-nail under the handle to elevate thesaid edge to gain a grip upon the handle. In removing the cap the handleis pulled at an oblique to the diameter of the disk, which brings thestrain upon the middle of the corrugation thereof, which slightlysuppresses and permits the opposite edge of the disk to be lifted out ofthe groove of the jar-neck, which permits the cap to be removed. The capis further provided with a transverse crease which serves as a hinge,thereby enabling one section of the cap to be swung back,

and through the opening thus formed the entire contents of the jar maybe permitted to run out, after which the said section may be swung backinto position in the throat of the jar, when the contents thereof, ifany, will be confined.

In the accompanying drawings, Figure 1 is a top plan view of a preferredform of a cap.

Fig. 2 is a transverse sectional'view same. Fig. 3 is a top plan view ofa modified form of the cap. Fig. 4 is a transverse sectional view of thesame. Fig. 5 is a top plan view of still another modified form of thecap. Fig. 6 is a transverse sectional view of the same; and Fig. 7 is atransverse sectional view of the top of a jar, showing the form of capas shown in Fig. 5 in position therein with its swinging section open.

In the form of the invention as shown in Figs. 1 and 2 the cap 1 isprovided at its edge with the cresent-shaped or interrupted corrugation2, the inner edge of which is concentric with relation to the center ofthe said cap. The outer edge of the said corrugation extends upwardlyand outwardly, while the portion of the cap embraced within corrugation2 is plane and on a level with the space separating the ends of thecorrugation. The handle 3 is secured to the cap at a point between theends of the corrugation 2, and the inner or free end of the said handle3 is provided with the pointed corners 4, whereby the person may readilyslip the nail under the edge of the cap to elevate the free end andsecure a grip thereon. In moving the cap from the jar the handle 3 isgiven a pull at an oblique to the diameter of the cap. The strainthereof causes the middle of the corrugation to contract slightly, thuspermitting the edge of the cap at the point where the handle 3 isattached thereto to escape the groove in the throat of the jar, wherebythe said cap is easily removed.

In the form of the invention as shown in Figs. 3 and 4. the constructionof the cap is the same as that shown and described in Figs. 1 and 2,with the exception that the inner edge of the corrugation 2 is locatedeccentric with 5 of the i made of lighter material than the ordinaryfiat cap, and it will possess the same amount of rigidity against axialstrain, but is more susceptible to contraction when subjected to lateralor diametrical strain.

In the form of the invention as shown in Figs. 5, 6, and 7 the cap isprovided with a transverse crease 5, which is preferably located to theone side of the center of the said cap. This crease serves as a hingeupon which one of the sections of the cap may be swung up withoutremoving the cap entirely from the throat of the jar. Through theopening all or a part of the contents of the jar may be poured out, andthen the said swinging section may be closed back into its originalposition, when the contents of the jar, if any, will be confined, andthe jar may with safety be placed upon the ice, as the contents thereofcannot run out should the jar eapsize. The advantage of placing the saidcrease to one side of the center of the cap is that the section of thecap which remains in permanent contact with the throat of the jar hasgreater frictional contact-surface, and thus is held more firmly incontact with the jar than theswinging section.

The cap being made, preferably, of absorbent material, such as paper,slightly swells when it absorbs the dampness from the contents of thejar, and consequently the edge of the cap is forced into hard contactwith the throat of the bottle.

By interrupting the corrugation 2 and securing the handle 3 to the capin such interruption the said handle may be permitted to lie flatagainst the plane surface of the cap, and when the handle is once lifteda crease is produced therein at the point of juncture with the cap,which indicates that the contents of the jar may have been tamperedwith. The further advantage of so locating the handle is that inexerting the lateral or oblique pull to remove the cap a greaterleverage is gained,

and consequently the cap may be more readily removed than if the saidhandle were attached at a point nearer to the center.

By cutting the edge of the handle 3 on the same are as that of the edgeof the disk the points i are formed at the corners of the said handle,and the handle-stock is economized, for the said stock may be fed instrips to the cap and cut off at the time thatit is secured to the cap.The same incision which conforms to the edge of the cap also producesthe points on the next handle above referred to.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. A jar-cap consisting of a disk having a corrugation with its endslocated within the edge of the disk.

2. A jar-cap consisting of a disk having a corrugation with its endslocated within the corrugation with its ends located within the edge ofthe disk, a handle secured to the cap in the space between the ends ofthe corrugation.

5. A jar-cap consisting of a disk having a corrugation embracing a plainsurface and having its ends located within the edge of the disk, ahandle secured to the cap in the space between the ends of thecorrugation and adapted to lie flat upon said plain surface.

6. A jar-cap consisting of a disk, a handle attached to said disk andhaving its corners formed by edges extending at acute angles to eachother. 7

7. A jar-cap consisting of a disk, a handle attached to said disk andhaving its free edge cut on the same are as the edge of the cap wherebyprojecting points are formed at the corners of the handle.

8. A jar-cap consisting of a disk having a corrugation the inner edge ofwhich is eccentric with the disk.

9. A jar-cap consisting of a disk having a corrugation with its endslocated within the edges of the disk the inner edge of said corrugationbeing eccentric with the disk.

10. A jar-cap consisting of a disk having a corrugation with its endslocated within the edge of the disk, the outer edge of which isconcentric with the disk and the inner edge eccentric therewith.

11. A jar-cap consisting of a disk having a corrugation, the outer edgeof which is concentric with the disk and the inner edge eccentrictherewith.

12. A jar-cap consisting of a disk having'a corrugation with its endslocated within the edge of the disk, the outer edge of the corrugationbeing in alinement with the edge of the disk and the inner edgeeccentric therewith.

13. A jar-cap consisting of a disk having a curved corrugation and atransverse crease.

14:. A jar-cap consisting of a disk having a peripheral corrugation anda transverse crease.

15. A jar-cap consisting of a disk having a curved peripheralcorrugation and a transverse crease.

16. 'A jar-cap consisting of a disk having a curved corrugation and atransverse crease entering said corrugation.

17. A jar-cap consisting of a disk having a corrugation with its endslocated within the edge of the disk and a transverse crease.

18. A jar-cap consisting of a disk having a ITO corrugation With itsends located Within the 21. A jar-cap consisting of a disk having a edgeof the disk and a transverse crease locurved corrugation the ends ofwhich are cated on one side of the center of the disk. spaced apart. I

19. A jar-cap consisting of a disk having a In testimony WhereofIhavesigned my name 5 curved corrugation and a transverse crease to thisspecification in the presence of tWo sub- 5 and a handle attached to thedisk. scribing Witnesses.

20. A jar-cap consisting of a disk having a ELDRIDGE J. SMITH.corrugation with its ends located Within the Witnesses: edge of the diskand a transverse crease, and NATHANIEL OARUsI, a handle attached to thedisk. A. E. GLAsoooK.

